package com.atguigu.eduservice.service.impl;

import com.atguigu.eduservice.client.VodClient;
import com.atguigu.eduservice.entity.EduVideo;
import com.atguigu.eduservice.mapper.EduVideoMapper;
import com.atguigu.eduservice.service.EduVideoService;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;

/**
 * <p>
 * 课程视频 服务实现类
 * </p>
 *
 * @author testjava
 * @since 2021-10-10
 */
@Service
public class EduVideoServiceImpl extends ServiceImpl<EduVideoMapper, EduVideo> implements EduVideoService {
  @Autowired
  private VodClient vodClient;
    @Override
    public void removeVideoByCourseId(String courseId) {
        //1.删除视频多个
        //获取视频的id
        QueryWrapper<EduVideo> queryWrapper = new QueryWrapper<>();
        queryWrapper.eq("course_id",courseId);
        queryWrapper.select("video_source_id");
        List<EduVideo> eduVideoList = baseMapper.selectList(queryWrapper);
        //
        ArrayList<String> videoIds = new ArrayList<>();
        for (int i=0;i<eduVideoList.size();i++){
            EduVideo eduVideo = eduVideoList.get(i);
            String videoSourceId = eduVideo.getVideoSourceId();
            if (!StringUtils.isEmpty(videoSourceId)){
                videoIds.add(videoSourceId);
            }

        }
        if (videoIds.size()>0){
            vodClient.deleteBath(videoIds);
        }

        //
        //
        //2.根据课程id删除小节
        QueryWrapper<EduVideo> wrapper = new QueryWrapper<>();
        wrapper.eq("course_id",courseId);
        baseMapper.delete(wrapper);
    }

}
